Peripheral osteoma in the ramus of mandible: report of case / Osteoma periférico en la rama mandibular: reporte de caso

The osteomas are benign rare neoplasms, generally asymptomatic which are characterized by the proliferation of a compact or spongy bone. When they are situated in the maxillofacial area, they affect mainly the mandible, the frontal bone and the paranasal sinus. We have described the case of a female caucasian patient who presented an increased volume in the posterior region of the oral vestibule on the left side. During the clinical examination an oral lesion was observed in the region of the left ramus of mandible. This lesion was motionless, consistent, and painless when palpated. In the image obtained from the computed tomography cone-beam (CBCT), we could observe an hyperdense, cylindrical region, with well defined borders, located in the medial surface of the left ramus of mandible, right below the mandibular notch. Based on clinical data and in the obtained images, we could confirm the presence of the peripheral osteoma in the left side of the ramus of mandible region.

Los osteomas son neoplasias benignas, raras, en la mayoría de los casos asintomáticas, que se constan principalmente de hueso maduro, compacto o esponjoso. De acuerdo a su ubicación en la región maxilofacial, la mandibula, el hueso frontal y los senos paranasales son preferentemente afectados. Describimos un caso de un paciente, sexo femenino, caucásica, que presentaba un aumento de volumen en la región posterior del vestíbulo oral en el lado izquierdo. Al examen clínico se observó una lesión inmóvil, consistente e indolora a la palpación. En la imagen obtenida a través del tomógrafo computado volumétrico Cone Beam (CBCT), se observó una región híperdensa, cilíndrica, con márgenes marcados, ubicada en la cara medial de la rama mandibular izquierda, inferior a la escotadura mandibular. Con base en los datos clínicos y las imágenes obtenidas se puede concluir la presencia de osteoma periférico en región de rama mandibular izquierda.

Ostema of Mandible - A Case Report.

Osteoma is an slow growing asymptomatic lesion. It is an benign tumour composed of mature compact or cancellous bone. It can be central, peripheral or extraskeletal.The central osteoma arises from the endosteum, the peripheral osteoma from the periosteum and the extra-skeletal soft tissue osteoma usually develops within the muscle [1] . Here a case report of osteoma in the lower border of the angle of the mandible in a 14 year old patient is presented. The osteoma was surgically excised.

A Case of Peripheral Osteoma in External Maxilla / 대한이비인후과학회지

Osteoma is a benign tumor characterized by proliferation of compact or cancellous bone that may form peripherally in a periosteal location or in central position. The most common site of the peripheral osteoma in the craniofacial area is the frontal sinus, and the extremely rare site is found to be in the external maxilla. Clinically, it appears round and shows slow growth without symptoms but its large size results in facial asymmetry, tenderness and swelling. Radiologically, peripheral osteoma appears as a well-circumscribed radiopacity and histologically shows proliferation of either compact or cancellous bone. The etiology of osteoma in maxilla is uncertain, but it has been suggested that they are frequently associated with infection or trauma. The treatment is surgical excision. We report a case of peripheral osteoma on the right anterior maxilla in 53-year-old female patient who complained of cheek discomfort and tenderness. Surgical excision was performed and the patient was followed up for 7 months without recurrence.

Peripheral Osteoma of the Mandible Body: A Case Report and Review of the Literature

Osteoma is a slow growing benign osteogenic lesion characterized by proliferation of compact or cancellous bone. Osteomas may be classified as peripheral, central, or extraskeletal. Central osteoma arise from the endosteum, pheripheral osteoma from the periosteum, and extraskeletal soft tissue osteoma within a muscle. Peripheral osteoma of the mandible is uncommon. They manifest as asymptomatic, fixed tumors of bony-hard consistency that may be sessile or pedunculated. Radiographically, a well circumscribed round or oval radiopaque mass is seen. Here, we report a case of a huge solitary peripheral osteoma of the buccal posterior mandible in a 40-year-old woman who was otherwise in good health. The patient visited at the dental clinic because the lesion makes esthetic problem. Treatment was performed by surgical esthetic recontouring and histological examination. The patient remains free of recurrence after surgical esthetic recontouring operation

Peripheral Osteoma of the Mandible / 대한구강악안면방사선학회지

PURPOSE: To determine the clinical and radiological features of peripheral osteoma of the mandible (POM) in a Korean population and to compare with previous reports. MATERIALS AND METHODS: Sixteen cases of POM found in 15 Korean patients who visited Seoul National University Dental Hospital between 1980 and 1998 were reviewed to determine their clinical and radiological features. RESULTS: The 15 patients, five males and ten females, ranged in age from 22 to 69 years, with a mean age of 40.7 years. Six POMs were located on the buccal side of the mandibular body and five on the lingual aspect of the mandibular body and five on the lower border of the mandible. The duration of the lesion ranged between 1 and 10 years. The size of the lesions, in their great diameter, ranged from 6 mm to 26 mm, with a mean of 14.1 mm. Six POMs were pedunculated, nine sessile, and one bell-shaped. Eleven POMs were compact types and five were cancellous ones. CONCLUSION: The clinical and radiological features of these Korean series were broadly consistent with those of non-Korean populations reported previously. The principal difference was that all POMs under 35 year-old age were compact types.